On Mon, Jun 26, 2006 at 03:13:17PM -0700, Ben Greear wrote: > Eric W. Biederman wrote: > > >Basically it is just a matter of: > >if (dest_mac == my_mac1) it is for device 1. > >If (dest_mac == my_mac2) it is for device 2. > >etc. > > > >At a small count of macs it is trivial to understand it will go > >fast for a larger count of macs it only works with a good data > >structure. We don't hit any extra cache lines of the packet, > >and the above test can be collapsed with other routing lookup tests. > > I think you should do this at the layer-2 level, well before you get > to routing. That will make the virtual mac-vlan work with arbitrary > protocols and appear very much like a regular ethernet interface. > This approach worked well with .1q vlans, and with my version of the > mac-vlan module.
yes, that sounds good to me, any numbers how that affects networking in general (performance wise and memory wise, i.e. caches and hashes) ... > Using the mac-vlan and source-based routing tables, I can give a > unique 'interface' to each process and have each process able to bind > to the same IP port, for instance. Using source-based routing (by > binding to a local IP explicitly and adding a route table for that > source IP), I can give unique default routes to each interface as > well. Since we cannot have more than 256 routing tables, this approach > is currently limitted to around 250 virtual interfaces, but that is > still a substantial amount. an typically that would be sufficient IMHO, but of course, a more 'general' hash tag would be better in the long run ... > My mac-vlan patch, redirect-device patch, and other hackings are > consolidated in this patch: > > http://www.candelatech.com/oss/candela_2.6.16.patch great! thanks! best, Herbert > Thanks, > Ben > > -- > Ben Greear <[EMAIL PROTECTED]> > Candela Technologies Inc http://www.candelatech.com - To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html
